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How to set up a printer on Manjaro

Posted: 2021-12-09 05:37:27
Source: https://linuxhint.com/set-up-printer-manjaro/

Printing is a standard feature of any computer system. However, it can be difficult when you are new to a Linux-based system such as Manjaro or have switched from Windows OS to Manjaro distribution. This article explains how to set up a printer on Manjaro Linux. There are multiple ways to set up printer devices. Methods to configure printer services, automatics and manual set up of printers in Manjaro are discussed in this tutorial.

Build a Blackjack Game in C++

Posted: 2021-12-09 04:34:24
Source: https://linuxhint.com/build-blackjack-game-cpp/

Blackjack is the world’s quite famous banking game played worldwide daily. It is in between a player and a dealer. A player used to compare their cards with the dealers. The player has to defeat the dealer with some rules already been set. Three things will define the player’s win. Building a Blackjack Game in C++ is explained in this article.

Can I install Manjaro with Secure Boot

Posted: 2021-12-09 04:32:43
Source: https://linuxhint.com/install-manjaro-with-secure-boot/

You cannot install Manjaro with the secure boot as it is not supported by default. If you want to boot your Manjaro kernel with the secure boot, it must be signed using a Microsoft License, which most Linux users are unlikely to do. This article provides a detailed guide about what secure boot is and how you can install Manjaro using secure boot. Commands to check the boot status of Manjaro are also mentioned in this article.

Distribution Release: Calculate Linux 22

Posted: 2021-12-08 14:15:45
Source: https://distrowatch.com/11421

Calculate Linux is a Gentoo-based distribution with several desktop editions, a cloud and a server edition. The project has published a new version, Calculate 22: "We are pleased to announce the release of Calculate Linux 22. With this new version, you will be able to smoothly update your....

5.15.7: stable

Posted: 2021-12-08 08:05:08
Source: http://www.kernel.org/

5.10.84: longterm

Posted: 2021-12-08 08:03:40
Source: http://www.kernel.org/

5.4.164: longterm

Posted: 2021-12-08 08:01:35
Source: http://www.kernel.org/

4.19.220: longterm

Posted: 2021-12-08 07:50:20
Source: http://www.kernel.org/

4.14.257: longterm

Posted: 2021-12-08 07:47:10
Source: http://www.kernel.org/

4.9.292: longterm

Posted: 2021-12-08 07:45:41
Source: http://www.kernel.org/

4.4.294: longterm

Posted: 2021-12-08 07:44:13
Source: http://www.kernel.org/

next-20211208: linux-next

Posted: 2021-12-08 07:36:54
Source: http://www.kernel.org/

BSD Release: FreeBSD 12.3

Posted: 2021-12-08 04:18:44
Source: https://distrowatch.com/11420

The FreeBSD team has announced the availability of the third update to the operating system's 12.x branch. FreeBSD 12.3 includes several bug fixes to the kernel, userland updates, and improvements to network drivers. The project's release announcement reports: "The FreeBSD Release Engineering team is pleased to announce the....

Distribution Release: Tails 4.25

Posted: 2021-12-08 01:52:15
Source: https://distrowatch.com/11419

The Amnesic Incognito Live System (Tails) is a Debian-based live DVD/USB with the goal of providing complete Internet anonymity for the user. The project's latest release is Tails 4.25 introduces a number of package updates for key components. It also features a backup utility to copy important files....

Callbacks and Promises | Explained with Examples

Posted: 2021-12-07 23:35:15
Source: https://linuxhint.com/callback-promise-javascript-examples/

To implement asynchronous code in JavaScript we use callback functions and promises. A callback function is passed as an argument to another function whereas Promise is something that is achieved or completed in the future. In JavaScript, a promise is an object and we use the promise constructor to initialize a promise. To use promise objects we take help from promise consumers that are then() method(if promise fulfilled) and catch() method (if promise is rejected).

ArrayBuffer in JavaScript | Explained

Posted: 2021-12-07 23:22:12
Source: https://linuxhint.com/arraybuffer-in-javascript/

The ArrayBuffer is an array of bytes, which is a fixed-length contiguous memory space reference whose content cannot be altered directly; instead, we need a Typed Array or a Data View. Data View specifies a format using methods in JavaScript, for example, getUint8(offset). To put it simply, an ArrayBuffer is used to store binary data.

AlmaLinux OS 8.5 Quick overview #Shorts

Posted: 2021-12-07 17:21:51
Source: https://www.youtube.com/watch?v=tBqPcbB1lRE

SSH Key Rotation with the POSIX Shell - Sunset Nears for Elderly Keys

Posted: 2021-12-07 17:00:00
Source: https://www.linuxjournal.com/content/ssh-key-rotation-posix-shell-sunset-nears-elderly-keys

by Charles Fisher

Introduction

OpenBSD has recently stressed to us the value of key rotation by their use of “Signify” distribution release signatures. We have realized that SSH keys should also rotate, to reduce the risk of powerful keys that fall into the wrong hands which become “the gift that keeps on giving.” There have always been open questions on the retirement of SSH keys. These questions have grown in volume and many are joining the advocacy for SSH certificate authorities.

To “rotate” an SSH key is to replace it, in such a way that it is no longer recognized, requiring removal from the authorized_keys file. SSH rotation is commonly addressed with Ansible, but this leaves many users on smaller systems or lacking privilege without recourse. A more basic and accessible method to migrate SSH keys is sorely lacking.

Below is presented an SSH key rotation script written in nothing more than the POSIX shell.

There is palpable danger in the misuse of such a tool. Many administrators control inaccessible systems that entail massive inconvenience in a loss of control. Demonstrated here are rotation schemes of increasing risk, for any holder of a key to choose, to their own tolerance. Hopefully, I have not made grave mistakes in the design.

The most conservative users of this approach should tread with extreme caution, test carefully, and ensure alternate means of access prior to any deployment. As the author, I have no desire to assume any responsibility for a failed rotation, and its consequences. I especially disavow the “wipe” option below to remove entries from authorized_keys. It is presented as commentary, not working code.

In any case, we foolishly rush in where the more prudent fear to tread.

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Proxmox Backup Server: Full Getting Started Guide!

Posted: 2021-12-07 16:00:01
Source: https://www.youtube.com/watch?v=33ubleU4OFc

3D Arrays C++

Posted: 2021-12-07 11:23:16
Source: https://linuxhint.com/3d-arrays-cpp/

It is very easy to deal with 1D arrays, and it is relatively difficult to manipulate with the 2D arrays. In the higher dimensional arrays, the 3D arrays are the most commonly used ones since it gets extremely complex to implement arrays with more than three dimensions. 3D Arrays in C++ are discussed in this article.